Moistening device for sole cutting machines



April 29, 1947. A. ROY ETAL MOISTENING DEVICE FOR SOLE CUTTING MACHINES Filed March 29, -l944 2 Sheets-Sheet 1 April 29, 1947.

A. ROY ET AL MOISTENING DEVICE FOR SOLE CUTTING MACHINES Filed March 29, 1944 2 Sheets-Sheet 2 INVEI JTO V 4% Patented Apr. 29, 1947 MOISTENING DEVICE FOR SOLE CUTTING MACHINES Albert Roy and Armand Roy, Lawrence, Mass.

Application March 29, 1944, Serial No. 528,514

8 Claims.

This device is particularly for use with sole cutting machines such as shown in United States Letters Patent to P. J. McGowan, No. 1,645,4 l1 of October 11, 1927, or it may be used with other machines of a similar type for a similar purpose.

It is found convenient in using such machines to have the work or stock to be cut fed in sheets perhaps eight feet long and twelve inches in width and it has been found that rubber or other similar stock must be moistened and must be moist or wet while the cutting knife travels, usually at. an angle, around the form.

As now used, each such machine requires two operators. One operates. the treadle which controls the valve in an air pressure line which admitsv air to and allows it to exhaust from a cylinder in which moves a piston carrying an auxiliary table on which part of the stock rests where by. part of the stock is moved up against the form,

while another operator feeds the stock and also keeps wet the part of it which is about to be out the floor to be wet and slippery.

. This device includes a spray nozzle connected with awater container and preferably operated by compressed air from the air pressure supply Which operates the piston in the cylinder which lifts th auxiliary work table. v

The spray is controlled either by the single treadle which opens the air valve to that cylinder and shuts it oif, allowing the air in the cylinder to escape to the spray device, or from another air control valve in the air supply from the same source of air pressure, controlled by another treadle or pedal which may be located next to the treadle for controlling the auxiliary table piston and cylinder. 7 I The water may be from a tank which is intermittently or automatically kept supplied.

With either ofthese constructions, a single machine operator can takecare of the moisten- 7 ing and can so regulate it that when the stock is 'moved up against the form, the spray is shut olf valve operated by means of a pedal, treadle or handle by another operator. 1 In the drawings,

t Fig. 1 is a sideelevation of our device and certain parts of the machine shown in patent to McGowan, Sole cutting machine, of October 11, 192 7, No.'1,645,441.

Fig. 2 is a front elevation of the devices shown in Fig. 1. Q

Fig. 3 is a plan view of part of the main work table and the auxiilary table.

Fig. 4 is a detail of a preferred type of water spray nozzle,

Fig. 5 is a vertical sectional view of the valv in the bottom of the tank.

Fig. 6 is an elevation partly in section of the control valve for the iston and cylinder which operate the auxiliary table with our exhaust pipe connection,

Fig. 7 is a plan view, Fig. 8 is a front elevation and Fig. 9 is a side elevation of our preferred type of trough and tank.

Fig. 10 is a side elevation of a preferred form of air control pedal, valve and adjusting devices.

Fig. 11 is a sectional view through the treadle,

pedal and operators foot which engages both.

Fig. 12 is a longitudinal section through an air control valve such as shown in Fig. 10.

Fig. 13 is a side elevation of a tank or water container of a somewhat different type from the one shown in Figs. 1 to 9.

In the drawings, A represents the frame of a machine similar to the one shown in Patent No. 1,645,441.

K represents the work or sheet material to be operated on and L represents the work table as a whole. This work table L includes a main table 3 and an auxiliary table it.

4 is a form detachably or otherwise secured, a indicated at 5, to a bracket arm 6 which is attached to an overhanging portion 1 of frame A and 9 is the knife adapted to be moved around the flange of a leader 33 closely adjacent to its periphery. This knife 9 is removably secured to an arm l0 and is operated by the same or similar machinery to that shown in the McGowan patent in his Figs. 6 and '7, and as described in his specifications on page 2, lines 23 to 73 and which it is not necessary to describe.

The auxiliary table 14 is secured to the head ll of a'piston l8 vertically reciprocable in a cylinder 19.

is a source of air pressure and the compressed air is conducted through an air pressure line G and an air control valve V having an inlet valve I00 in the main valve body llll to cylinder 19. This inlet valve I00 is normally in position to prevent any air from passing through valve V into the part II! of air pressure line G which connects with air cylinder 19.

This valve V is the same or substantially similar to the one shown in the McGowan patent and is operable by means of a T-shaped lever arm I09 pivoted at H and by a wire or rod H3 to a foot treadle H2. When this lever I09 is pulled down against-the tension on the coiled spring H4, the air will pass from the air pressure line G through the valve body HH and into the cylinder 19.

The result of this is that the piston 18 carrying the auxiliary table 14 is pushed up against the form 4.

When the pressure on treadle iLZ-isreleased, spring H4, pulls the T-lever L03 upwardly shut ting off the air supply to cylinder 1'8 through port H8 and part H! of line G and opening a passage I29 which is an exhaust port thus allow ing thecair to escape from cylinder .13 whereupon the, auxiliary table 14 will drop to its normal positio n'in line with the rest of the table 3,

The above devices are old and well known.

we utilize this compressed air escaping from the cylinder 19 through exhaust port I 29.f by conmeeting that port withjan airn'ozzle zijr n m part of an atomizing or water spray device C by means of a connecting air pipe 2'5,' Air-flows through this pipe 2 5 and nozzle 2i until all-that was 'trapped in cylinder 19 has been released.

The result of a knife such as 9 moving 'a'round jajflange such as 33 is jshownv at l4, 14, in Fig. 3. The 'edgesjof the solesfl l, [4, are usually beveled as the knife, armand form are generally set for that purposebecause a straight dieaction will not produce that result. I

Our device includes a water container "which, as shown in Figs. 1 to 9, may include a'trough'T which is a tank B both carried independently by a stand F, as shown, or fastened in any suit- "able way tothe work table Lproximate the point where the work shown as sheet material K is about to be pushed along between the auxiliary table 14 and'theiorm Land, in connection with the water container, a water spray device-Cwhich includes a water spray nozzleZO and an air no z zle2 I, adjoining the water spray nozzle. The air nc' zzle'zi of device C is connected to the main air pressure line G and is controlled by a valv therein.

Y Asshqwnin Figs. 1'to'9, thetrough T-is-rectangular and has the bottom 49 and side and e'n'd walls 4|, 4|, its top being open-so that the tank]; can be placed in-it and removed therebottom '45'through which is a-valve hole It for-a {watercontrol valve'E. As shown the tank is carried by the legs 46,46; and there is a port hole 49in valve E- through which passes stem "48 -for plug 88, and other valve holes such as-'82.

Projecting upward from the bottom 40 of :tr'ou'gh-T isairiserlfladaptedto engage .thestem 48 of a common type of spring valve This valve :EL is located:in hole I! which it closes automatically by the movement of :plug 8Elcarried by stem 48 and spring 8| when the stem 48; is not in .conta ct with the riser 4'l.

The water. level in the trough part of t he contain eris therefore kept steadily at thelevelof .the poi t 49 and when the tank B is to hef-rej- .filledthe valve E can be unscrewed, theitank fi lledpthev valve lil replaced, and. tank Bjt'urned upside down in trough T thus allowing'the'water 4 to run from the tank into the trough and maintain a steady level.

Other types of water containers with suitable valves as shown in Fig. 13 connected with a regular water supply might be used and we do not confine ourselves to this one type of water container.

As shown, this water container is supported by a. stand F which rests on the floor but it might be clamped on the side of the frame A as shown in Fig. 13.

C is a water spray device which as shown is adjustably attached to the trough T by means of a bracket D so that its water spray nozzle 20 and. air nozzlezl can be directed up or down and to one side or the other onto the work K. As shown, air nozzle 21 carries spray nozzle 20 by means of an arm 22 and 23 represents a water spray pipe, for nozzle 20, which extends down into the trough T.

T bracket .Dftosupport the devicejC includes twoarms 30, 3].,jat right angles with each, other each having ajslot3 2, or 3 3, Asshown, aboltlfl is fixed to trough T and passes through slot 32 and by means of a winged nutv35 the arm 30,. can beraised or lowered, or swung sideways. Fixed to nozzle 21 is another screw 0! bolt '36 which passes through theslot 33 of the arm 3]. and by means of a winged. nut 31, the nozzles. 20 and}! of, device C canbe adjusted up or down or sideways.

There maybe a drip lipwhich carriesback any dropsfrom'thefend of nozzle 20,

,G represents the air pressure line from the source of air pressure to the operating cylinder l9 and 1V represents. the air control valve in that line with the exhaust port I29.

The air. nozzle l l by means of the air-pipe 25 is -connected'with 'thi exhaust I29 so that when the .air'isjreleasedfrom the cylinder 19 itescapes through the nozzle 2|. Thiswaste air from cylinder 19 thereforefatomizes or causes a. spray .to be proiectedffrom the water nozzle 20-onto the work K when theknife is-not cutting as the knife cuts only. whenpiston 13in cylinder is is held under pressure by the. air from pressure lin G, through air control valve V,

Ere'ssureon treadlell 2. causespart of the work to lb'e cntto b'e. raised-against form [and release or pressurejallows the next section which istobe crit'to be advanced, raisedand cut-t be sprayed and. suitably. moistened.

We find it convenient toutilize the .well known '1', r McGowan. typeof aircontrolvalvesuch "55 .sjaryto connect the'air nozzle'll of the. water spray;deyiceQwithits exhaust port I29 as by fin. the air pressure .lineGasit is. only necesl-1 nc r- However as shown. in=Figs. '10, '11 12; the air for the'spray device such as C can be controlled by a separatepedalsuch as P shown as pivoted at 6 I with its footrarrnifii. next .to-the arm .of= treadle l,l2,';so .th at both pedals, can be moved together 'byjthe...operator,s. foot; [00, asshownin Fig, 11,

or'leach' can be movedseparately.

'In l thisf case,'the exhaust air' froma valve-such as It through pipe. 2 5.is .not utilized. and there. is

no pipelfifas the air for the valve V-is allowed n'stead'of so doing, we can utilize the air was sure from line G to and through a valve M, as shown in detail in Fig. 12. Valve M takes the place of the valve of the exhaust port I29, and part of pipe 50 takes the place of the pipe 25 from the exhaust port of the valve V; to the air spraying device C.

If the operator presses pedals H2 and P down together, the auxiliary table 14 is lifted and at the same time air through pipe 50, Fig. 13, to the air nozzle 2| of the water spray device C projects a spray or mist onto stock K while the cutting is going on. If more or less spray is desired, each pedal can be operated separately as follows.

Valve M is on the branch pipe 50 from main pipe G and is controlled by pedal P. Therefore as the treadle and pedal are both pushed down, while the cutting is being done, the spraying is being delivered on another part of the stock, and when the treadle H2 is released, if not enough spray has been delivered, the operators foot can shift from both pedal and treadle, full lines Fig. 11, to the pedal P alone, dotted lines Fig. 11, and held as long as he wishes. Before he shifts his foot, a sole I4 has been cut and the spray is on another part of the stock K which he then moves with his hands on to table 14, and then presses I I2 alone or with P, thus cutting another sole l4.

On the other hand, if he wishes to spray when not cutting, he can press down treadle H2 and hold it during the cutting and then, after it is released, he can shift to pedal P, spray as long as he wants to; then he can move the sprayed part over to table 14 to be cut; and then he can replace his foot on treadle M2 to out another sole Hi.

When the operator with his foot presses down part 62 of pedal P this lifts the other arm 6|) with wheel 59 against a bend on an arm 58 of a rocker R pivoted at 55 with an operating arm 56 and a stop arm 51.

This operating arm 56 controls a well known type of air valve M in a pipe 50 which is tapped into the air pressure line G as shown at the top of Fig. 10 and has a port 5| normally closed by a plug 52 carried by a stem 53 and a spring 54.

64 is an adjusting screw Which is threaded through arm 56 and rests on the end of stem 53 of valve M. It has a head 65 and a check nut 66 so that its exact relation with valve M can be regulated. When end 62 of pedal P is stepped on, it lifts the arm 60 and wheel 59 which engages the bent end of arm '58 and pushes that arm58 to the right and moves arm 56 and pin 64 against the valve stem 53 with plug 52 thus opening the port 5| to allow air through pipe 50 to enter and flow through pipe 50 to air nozzle 2|. 69 is a pedal returning spring.

As shown in Fig. 13, in place of the water container such as shown in Figs. 1 to 7, we can use a container N supported in any suitable way as by a bracket 13 on the frame A. ill is a pipe line from water under pressure which ends in an inlet II which is opened or closed by a valve 12 controlled by a ball 14 in a well known manner so as to maintain the water level substantially the same. A bracket D carrying a water spray device such as C can be attached to container N in the same way as hereinbefore described.

On account of the difierent speed and peculiarities of different operators and of difl'erent stock, we find it desirable to provide for changing the quantity of water delivered to the water spray nozzle and the volumeof air to the air nozzle.

When an additional pedal such as P and a valve M are used, the air can be directed through nozzle 2| as long as desired and the regulation of the amount of water spray delivered is wholly under control, but the supply of air when T valve V is used islimited to the amount trapped-in cylinder 19. a

When the valve V is used, in order to change the amount of water spray to be delivered, we prefer to use an adjustable water valve such as shown in Fig. 4 at 26. This valve 26 is carried by the arm 22 and is provided with an under water inlet 21 in the tubular body 26.

Inside this tubular body 25 is a tubular stem 29 with an inlet port 28 opposite inlet 21, the stem 29 being also provided with aprojecting lug or thumb piece I30 by turning which the amount of Water which passes through the inlet ports 21 and 28 and therefore the amounts of water spray delivered can be increased or decreased or the water supply can be shut off entirely.

This is some times desirable s0 that the air blast from the nozzle 2| can be used for blowing dirt off from the work K.

Where a separate'pedal such as P is used, we preferably provide adjusting screws such as 64 and which engage a plate 84 so that the stem 53 of valve M can be moved more or less to allow more or less air to pass to the air spray nozzle such as 2|.

However, we can use both the adjustment for the water nozzle and for the air nozzle or can omit either or both.

We claim:

1. The combination with a sole cutting machine having a frame, a Work table carried thereby and including a main table and an auxiliary table normally flush with the main worktable and carried by a, vertically movable piston operable by air pressure in a cylinder whereby a part of the work on the main table can be lifted by air pressure from an air pressure line connected to the cylinder and to a source of air pressure; an air control valve with an operating arm interposed in the air pressure line to the cylinder from the source of air pressure, said valve being so arranged that when its operating arm is moved one way, air under pressure goes to the cylinder and when moved the other way it shuts off the air pressure and allows the cylinder air to escape through an exhaust port, a foot treadle and a connection to the operating arm of the valve to control the air going to and coming from the cylinder; of a water trough positioned near the main work table proximate the auxiliary table; a water tank positioned in the trough with a water level regulating valve in its bottom and positioned in the trough; and an air operable water spray device adjustably attached to the trough and ineluding a water spray nozzle positioned proximate the auxiliary table, a water pipe from the water spray nozzle into the trough, an air nozzle adjoining the water spray nozzle; and an air connection from the air nozzle to the exhaust from the air valve.

2. The combination with a sole cutting machine having a frame, a work table carried thereby and including a main table and an auxiliary table normally flush with the main work table and carried by a vertically movable piston operable by air pressure in a cylinder whereby a part of the work on the main table can be lifted by air pressure from an air pressure line connected to the cylinder and to a source of air pressure; of a water trough positioned on the mhih. w rk able h axi ate the. ahz lia r able a water tank nq i iqhesi. he tr h h with a eve re ula n v lve i s DPJE QmeQPQP tiqll th FQH -h w ll??? P TQY v ce. @1 7 ta t-1e41- 9 he rough and hqlhsii-ha' wate pr nozzle pipe from the water in the trough to a wate pr y no zle peti o ed hea h side of W ma n W ta le r x ma lllii fl tab e, s id W e sp a hoezle: to i e t. a wa e .SPIEW l auxiliary bla. an $1. 1 9319 ill: iaihih h wa r sp a oz les n a r h hh h from the n zle t the a s r line a valve Said a r sur ine; an a p d 9 cont ol fii h am h i h h a .9 ut in ma-. ch e ha a a e. a wo k tabl Qa ie th r y a n udin a main table an n u ary ab e no m ush w th th a h. w k ab e and a d b a ve ih l vmovabl pistqn char hlebv a ressu e in a inder wh by a a of the work on the main table can be lifted by air pressure from an air pressure line connected to the cylinder and to a source of: air pressure; of a water container positioned near the main work table proximate the auxiliary work table; an air operable air spray device including a water spray nozzle positioned proximate the auxiliary work table, a-pipe from said water spray nozzle to the water container and anair nozzle adjoining the water spray nozzle; an air connection from the a r hQZ-Zl to h a r ress r e; and va e ans to hh i q he a s ea fr-air h hu h su air connection.

4. The combination with a sole machine having a frame, a work table carried thereby, and: including a main table and an auxiliary table normally flush with the main work table and carried by a vertically movable piston operableby air pressure in a cylinder whereby a part of the work on the main tablecan be lifted by air pressure from an air pressureline connected to the cylinder and to a source of air pressure; an air control valve interposed in the air pres sure line to the cylinder from the source of; air pressure, said valve being so arranged that when its operating arm is movedone way, air under pressure goes to the cylinder and when moved the other way it shuts off the air pressure and allows the cylinder air to escape through an exhaust port, a foot treadle and a connection to the operating arm of the valve to control the air going to and coming from the cylinder; of an air operable water spray device including. a water spray nozzle pipe from a source of water supply to a water spraynozzle positioned proximate the auxiliary table, saidwater spray. nozzle and an air nozzle adjoining the water spray nozzle; an air connection from theair nozzle tothe air pressureline; and valve meansto control the. passage of airthroughsuch air connection; together with a pedal positioned proximate said treadle tocontrol' the movements of said last named valve means.

5; The combination with a sole cutting machine having a frame, a work table carried thereby. and including a, main tabla andan auxiliary table. normally flush with the main worktable and carried by a vertically movable pistonoperable. by air pressure in a cylinder whereby. a part of 'thework on the .main table. can be lifted by. air pressure, froman air. pressure lineconnested-to the cylinder and to..a.,sourceof. air

hra sh si Q ah: air Qs rahle wa r a ar s ries. i lq t. he was sh av phzl 2 12a h r a m .i shrh vt aw tar hr v h z l Pi 9h a rtaeme ahaih rv. abla ai wa r P W hq z fi -ahdaf h a r hzz e ad oi in h Wate spray nozzle; an air connection from theairnoz le o t a p ssur ne-1a alv mea s to entra theh as o air th ou h u 9. hem r- The chm het ph wi a l q tt hs achinehaving afrarne a work table carriedtherebva id ihclud ne, a main table and an uxilia ta le normal lu h wi h he n o t bl and carried bya vertically movable pistonoper- 8191?. ah: P 'Y QWI'B f ipii f fiPY Part o f the work on the main: table can be lifted by air. pressure from: an air pressure line connected tp'the cylinder and to a, source of air pressure; of: meansl'e e al e b air m' h air P ur linejto sprayliquid on the work as it rests on the wor a les 7;. The combination with a sole cutting machine having. a frame, a work table carried thereby and; including a main table and an auxiliary table normally flush with the main work table and carried by a vertically movablepiston operable by airpressurein a cylinder whereby a part of thfl. wQrki 0n the main table can be lifted by air pressure'frorn an air pressure line connected to the cylinder and'to'a source of-air pressure; of means to spray liquid on the-work as it rests on the work table; together with foot operable means .to control the air pressur in the. cylinder andtocontrolthe means to spray liquidon the Work when it is on the work table.

8. The combination with a sole cutting ma; chine having a-frame, a work table carried thereby and including a maintable and an auxiliary table norma y. flush h; he-maihw r ab e and. carried. by a; vertically movable pistonv oper able by air pressure in a cylinder whereby a part of; the work. On themain tablecan be lifted by airgpressure from an; air-pressure-line connected tothecylinder, and to a source of air' pressure; an airgcontrol valve interposed in theairpressure line, to the cylinder from the source of. air pressure, saidvalve being so, arranged that when its operating arm-is moved'one way, air under pressure goesto the cylinder and when moved theotherway itshuts off the air pressure and allows the cylinder air. to, escape through an exhaust port,.aioottreadlerand a. connection to the-operating arm of the valve to. control the air going'tolandcomings from. the cylinder; of a water: cont ner. positioned near. themain. work table proximate the-auxiliary table; an'airoperable water spray-device includin awaterspray nozzle positioned proximatcihe mainwork table, an air, nozzle. adjoin n the water lspray nozzle; and:an air connection ;from .the,air nozzle to the exhaust from the air,..control valve.

' ALBERT, ROY.

ARMANTD ROY.

REFERENCES orrcn The following references are of record in the file of this patent:-

. llillifEpe lef ifis ATENT Number Name. Date 1,146,449 Riel July-'13; 1915 1',64 5;4 41 McGowan Oct. 11, 1927 

